diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-03-11 06:52:08 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-03-11 06:52:08 +0000 |
| commit | db5f2fc93df02baf40b08fae9918f30ae83368a3 (patch) | |
| tree | bec5cbfadc4a4ee0535d03a8973ad0d1a2210b41 /nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S | |
| parent | 6a4263e3d5a6fee74776f3bcad4e53f5257aa5bf (diff) | |
Update.
* sysdeps/unix/sysv/linux/x86_64/sem_post.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: New file.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Fix error value in
unused code.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S new file mode 100644 index 0000000000..647aee8834 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_post.S @@ -0,0 +1,73 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> + +#ifndef UP +# define LOCK lock +#else +# define +#endif + +#define SYS_futex 202 +#define FUTEX_WAKE 1 + +#define EINVAL 22 + + + .text + + .globl __new_sem_post + .type __new_sem_post,@function + .align 16 +__new_sem_post: + movl $1, %edx + LOCK + xaddl %edx, (%ebx) + + movq $SYS_futex, %rax + movq $FUTEX_WAKE, %rsi + incl %edx + syscall + + testq %rax, %rax + js 1f + + xorl %eax, %eax + retq + +1: +#if USE___THREAD + movq errno@gottpoff(%rip), %rdx + movl $EINVAL, %fs:(%rdx) +#else + call __errno_location@plt + movl $EINVAL, (%rax) +#endif + + orl $-1, %eax + retq + .size __new_sem_post,.-__new_sem_post + .symver __new_sem_post, sem_post@@GLIBC_2.1 +#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) + .global __old_sem_post +__old_sem_post = __new_sem_post + .symver __old_sem_post, sem_post@GLIBC_2.0 +#endif |